package com.obj;

import java.util.ArrayList;
import java.util.List;

public class ListDemo {
	
	public static void main(String[] args) {
//		Object [] obj=new Long[2];
//		obj[0]="123";
		
		
		List list=new ArrayList<Long>();
		list.add("123");
		System.out.println(list.size());
		for (Object object : list) {
			System.out.println(object.toString());
		}
		float f=1.03f-0.42f;
		System.out.println(f);
		System.out.println(1.03-0.42);
		
	}
	@Override
	public String toString() {
		return super.toString();
	}

}
